Perhaps you should try some spelling variations:
thi cham » thi hai, toc cham, thi ha
sang lap » sang ma, sang tai, dan lap
hanh dao » lanh dao, thanh dat, thanh dam
sang tao » hang tai
vu cham » va cham, vu kham, tu cham
dao cua » dai cua, day cua, dan cua
va hanh » van hanh, va thanh, va danh
xuc va » duc va, tuc va, luc va
tu san » thu san, tu ban, tu can
san ky » sang ky, van ky, dan ky
cua te » cua tu

You may be able to get more results by adjusting your search query.

• Performing a fuzzy search may retrieve terms with similar spellings: tu san ky ((sang lap) OR (sang tao)) hoi. hieu ((vu cham) or (thi cham)) xuc va hanh dao cua te~.
• If you are trying to use Boolean operators, they must be ALL CAPS: tu san ky ((sang lap) OR (sang tao)) hoi. hieu ((vu cham) OR (thi cham)) xuc va hanh dao cua te.
• The words AND, OR and NOT may confuse the search; try adding quotes: "tu san ky ((sang lap) OR (sang tao)) hoi. hieu ((vu cham) or (thi cham)) xuc va hanh dao cua te".
• Adding a wildcard symbol may retrieve word variants: tu san ky ((sang lap) OR (sang tao)) hoi. hieu ((vu cham) or (thi cham)) xuc va hanh dao cua te*.